So far, we've seen evidence that the latest N-trig firmware causes the hardware to slowly become "de-calibrated" and in need of updating. Just do this:

So far, we've seen evidence that the latest N-trig firmware causes the hardware to slowly become "de-calibrated" and in need of updating. The simplest way to determine if your device is capturing touch events in an expected manner is to use the [[Multitouch/Testing/UsingMtview|mtview tool]]. If when you run {{{mtview}}} your device is only showing touches for some parts of the screen, touches are offset, or you have to press very hard to register a touch, calibration is very likely needed.

Usually, one pass of the tool will fix things up. Try running [[Multitouch/Testing/UsingMtview|mtview]] again, to see if your touch experience has improved. On occasion, a user has needed to run {{{calib.sh}}} multiple times to see good results.

Build

Calibrating the Device

So far, we've seen evidence that the latest N-trig firmware causes the hardware to slowly become "de-calibrated" and in need of updating. The simplest way to determine if your device is capturing touch events in an expected manner is to use the mtview tool. If when you run mtview your device is only showing touches for some parts of the screen, touches are offset, or you have to press very hard to register a touch, calibration is very likely needed.

Usually, one pass of the tool will fix things up. Try running mtview again, to see if your touch experience has improved. On occasion, a user has needed to run calib.sh multiple times to see good results.